Technical Systems Audits (TSAs)

TSA Guidance Documents

The following items include guidance documentation for the implementation of Technical Systems Audits (TSAs) within EPA's ambient air monitoring programs. Additional pollutant specific QA guidance documents can also be found on the specific network pages.

Quality Assurance Guidance Document: Conducting Technical Systems Audits of Ambient Air Monitoring Programs (pdf) (1.25 MB)

TSA Guidance Appendix A: Pre-Audit Questionnaire (docx) (267.02 KB)

TSA Guidance Appendix A: Pre-Audit Questionnaire (xlsx) (133.97 KB)

TSA Guidance Appendix B: Example Field Logbook (docx) (454.52 KB)

TSA Guidance Appendix C: Weigh Lab Systems Audit Checklist (xls) (87 KB)

TSA Guidance Appendix D: Lead in Air Checklist (xls) (88.5 KB)

TSA Guidance Appendix E: Example Report Template (docx) (65.6 KB)

TSA Guidance Appendix F: Example TSA Close-Out Letter (docx) (143.54 KB)